:root{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;--c-bg:#fff;--c-bg-soft:#f6f7f9;--c-bg-muted:#eff1f5;--c-surface:#fff;--c-ink:#0f172a;--c-ink-2:#1e293b;--c-text:#334155;--c-muted:#64748b;--c-faint:#94a3b8;--c-line:#e3e7ee;--c-line-soft:#eef1f5;--c-brand:#1f4fd8;--c-brand-ink:#1739a8;--c-brand-soft:#eef3ff;--c-brand-line:#c9d7fb;--c-ok:#15803d;--c-ok-soft:#ecfdf3;--c-warn:#b45309;--c-warn-soft:#fff7ea;--c-bad:#b91c1c;--c-bad-soft:#fef1f1;--c-info:#0e7490;--c-info-soft:#ecfbfe;--c-violet:#6d28d9;--c-violet-soft:#f4f0ff;--radius-lg:16px;--radius:12px;--radius-sm:8px;--shadow-sm:0 1px 2px #0f172a0d;--shadow:0 1px 2px #0f172a0a, 0 6px 20px -10px #0f172a24;--shadow-lg:0 18px 40px -18px #0f172a40;--container:1200px;--prose:780px;--gutter:16px;--header-h:60px;--fs-xs:.8125rem;--fs-sm:.9063rem;--fs-base:1.0625rem;--fs-md:1.125rem;--fs-lg:1.3125rem;--fs-xl:1.625rem;--fs-2xl:clamp(1.625rem, 1.2rem + 1.8vw, 2.25rem);--fs-3xl:clamp(1.875rem, 1.3rem + 2.6vw, 2.875rem);color-scheme:light}@media (width>=768px){:root{--gutter:24px;--header-h:64px}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px)}@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}body{font-family:var(--font-sans);font-size:var(--fs-base);color:var(--c-text);background:var(--c-bg);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;margin:0;line-height:1.75;overflow-x:hidden}img,svg,video{max-width:100%;display:block}img{height:auto}h1,h2,h3,h4{color:var(--c-ink);letter-spacing:-.01em;margin:0;font-weight:700;line-height:1.35}p{margin:0}a{color:var(--c-brand);text-decoration:none}a:hover{color:var(--c-brand-ink)}:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}button{font:inherit;cursor:pointer}input,select,textarea{font:inherit}ul[role=list],ol[role=list]{margin:0;padding:0;list-style:none}table{border-collapse:collapse}.container{width:100%;max-width:var(--container);padding-inline:var(--gutter);margin-inline:auto}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;background:var(--c-ink);color:#fff;border-radius:var(--radius-sm);padding:8px 14px;position:absolute;top:-48px;left:12px}.skip-link:focus{color:#fff;top:12px}.muted{color:var(--c-muted)}.section{padding-block:40px}.section-soft{background:var(--c-bg-soft);border-block:1px solid var(--c-line-soft)}@media (width>=1024px){.section{padding-block:56px}}.section-head{justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:20px;display:flex}.section-head h2{font-size:var(--fs-xl)}.section-head p{color:var(--c-muted);font-size:var(--fs-sm);margin-top:4px}.section-head .more{font-size:var(--fs-sm);white-space:nowrap;flex-shrink:0;align-items:center;gap:4px;font-weight:600;display:inline-flex}.eyebrow{font-size:var(--fs-xs);letter-spacing:.04em;color:var(--c-brand);text-transform:uppercase;align-items:center;gap:6px;font-weight:600;display:inline-flex}.grid{gap:16px;display:grid}.grid-2,.grid-3,.grid-4{grid-template-columns:minmax(0,1fr);gap:16px;display:grid}.grid-2>*,.grid-3>*,.grid-4>*,.with-aside>*{min-width:0}@media (width>=640px){.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}}.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.card-pad{padding:20px}.btn{min-height:44px;font-weight:600;font-size:var(--fs-sm);white-space:nowrap;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:10px 18px;line-height:1.2;transition:background-color .15s,border-color .15s,color .15s;display:inline-flex}.btn-primary{background:var(--c-brand);color:#fff}.btn-primary:hover{background:var(--c-brand-ink);color:#fff}.btn-outline{color:var(--c-ink);border-color:var(--c-line);background:#fff}.btn-outline:hover{border-color:var(--c-brand-line);color:var(--c-brand)}.btn-ghost{color:var(--c-brand);background:var(--c-brand-soft)}.btn-sm{min-height:36px;font-size:var(--fs-xs);padding:6px 12px}.badge{font-size:var(--fs-xs);background:var(--c-bg-muted);color:var(--c-ink-2);white-space:nowrap;border-radius:999px;align-items:center;gap:4px;padding:2px 8px;font-weight:600;line-height:1.6;display:inline-flex}.badge-brand{background:var(--c-brand-soft);color:var(--c-brand-ink)}.badge-ok{background:var(--c-ok-soft);color:var(--c-ok)}.badge-warn{background:var(--c-warn-soft);color:var(--c-warn)}.badge-bad{background:var(--c-bad-soft);color:var(--c-bad)}.badge-muted{background:var(--c-bg-muted);color:var(--c-muted)}.badge-violet{background:var(--c-violet-soft);color:var(--c-violet)}.chip{border:1px solid var(--c-line);min-height:36px;color:var(--c-ink-2);font-size:var(--fs-sm);background:#fff;border-radius:999px;align-items:center;gap:6px;padding:6px 12px;line-height:1.3;transition:border-color .15s,color .15s;display:inline-flex}.chip:hover{border-color:var(--c-brand-line);color:var(--c-brand)}.chip small{color:var(--c-faint);font-size:var(--fs-xs)}.table-wrap{-webkit-overflow-scrolling:touch;border:1px solid var(--c-line);border-radius:var(--radius);background:#fff;width:100%;overflow-x:auto}.data-table{width:100%;min-width:560px;font-size:var(--fs-sm);line-height:1.6}.data-table th,.data-table td{text-align:left;vertical-align:top;border-bottom:1px solid var(--c-line-soft);padding:12px 14px}.data-table thead th{background:var(--c-bg-soft);color:var(--c-ink);white-space:nowrap;border-bottom:1px solid var(--c-line);font-weight:600}.data-table tbody tr:last-child td,.data-table tbody tr:last-child th{border-bottom:0}.data-table tbody th{color:var(--c-ink);white-space:nowrap;font-weight:600}.prose{max-width:var(--prose);font-size:var(--fs-base);color:var(--c-text);overflow-wrap:break-word;line-height:1.85}.prose>*+*{margin-top:1.1em}.prose h2{font-size:var(--fs-lg);margin-top:2.2em;padding-top:.2em}.prose h3{font-size:var(--fs-md);margin-top:1.8em}.prose h4{font-size:var(--fs-base);margin-top:1.5em}.prose h2+*,.prose h3+*,.prose h4+*{margin-top:.7em}.prose a{text-decoration:underline;text-decoration-color:var(--c-brand-line);text-underline-offset:3px;text-decoration-thickness:1.5px}.prose a:hover{text-decoration-color:currentColor}.prose strong{color:var(--c-ink);font-weight:650}.prose ul,.prose ol{padding-left:1.4em}.prose li+li,.prose li>ul,.prose li>ol{margin-top:.4em}.prose li::marker{color:var(--c-faint)}.prose blockquote{border-left:3px solid var(--c-line);color:var(--c-muted);margin-inline:0;padding:4px 0 4px 18px}.prose hr{border:0;border-top:1px solid var(--c-line);margin-block:2.4em}.prose img{border-radius:var(--radius);border:1px solid var(--c-line-soft)}.prose figure{margin-inline:0}.prose figcaption{font-size:var(--fs-xs);color:var(--c-muted);text-align:center;margin-top:8px}.prose :not(pre)>code{font-family:var(--font-mono);background:var(--c-bg-muted);color:var(--c-ink-2);overflow-wrap:anywhere;border-radius:6px;padding:.15em .4em;font-size:.875em}.prose pre{font-family:var(--font-mono);border-radius:var(--radius);border:1px solid var(--c-line);padding:16px 18px;font-size:.875rem;line-height:1.65;overflow-x:auto;background:#f8fafc!important}.prose .table-wrap{margin-top:1.4em}.prose table{width:100%;min-width:520px;font-size:var(--fs-sm);line-height:1.6}.prose th,.prose td{text-align:left;vertical-align:top;border-bottom:1px solid var(--c-line-soft);padding:10px 14px}.prose thead th{background:var(--c-bg-soft);color:var(--c-ink);border-bottom:1px solid var(--c-line);white-space:nowrap;font-weight:600}.prose tbody tr:last-child td{border-bottom:0}.prose :is(h2,h3)[id]{scroll-margin-top:calc(var(--header-h) + 16px)}.notice{--n-c:var(--c-info);--n-bg:var(--c-info-soft);border:1px solid color-mix(in srgb, var(--n-c) 22%, transparent);border-left:4px solid var(--n-c);border-radius:var(--radius-sm);background:var(--n-bg);color:var(--c-ink-2);font-size:var(--fs-sm);margin-inline:0;padding:14px 16px 14px 18px;line-height:1.75;position:relative}.notice>*+*{margin-top:.5em}.notice .notice-title{color:var(--n-c);font-weight:700;font-size:var(--fs-sm)}.notice-tip{--n-c:var(--c-ok);--n-bg:var(--c-ok-soft)}.notice-warning{--n-c:var(--c-warn);--n-bg:var(--c-warn-soft)}.notice-danger{--n-c:var(--c-bad);--n-bg:var(--c-bad-soft)}.notice-important{--n-c:var(--c-violet);--n-bg:var(--c-violet-soft)}.score-bar{font-size:var(--fs-sm);grid-template-columns:5.5em 1fr 2.6em;align-items:center;gap:10px;display:grid}.score-bar .track{background:var(--c-bg-muted);border-radius:999px;height:8px;overflow:hidden}.score-bar .fill{border-radius:inherit;background:var(--c-brand);height:100%}.score-bar b{text-align:right;color:var(--c-ink);font-variant-numeric:tabular-nums}.rating-pill{background:var(--c-ink);color:#fff;font-variant-numeric:tabular-nums;border-radius:10px;align-items:baseline;gap:2px;padding:4px 10px;font-weight:700;line-height:1.3;display:inline-flex}.rating-pill small{opacity:.7;font-size:.75em;font-weight:500}.page-hero{background:linear-gradient(180deg, var(--c-bg-soft), var(--c-bg));border-bottom:1px solid var(--c-line-soft);padding-block:24px 28px}.page-hero h1{font-size:var(--fs-2xl);margin-top:12px}.page-hero .lead{max-width:820px;color:var(--c-muted);font-size:var(--fs-md);margin-top:12px;line-height:1.75}.answer-box{border-radius:var(--radius);border:1px solid var(--c-brand-line);max-width:860px;color:var(--c-ink-2);background:#fff;margin-top:18px;padding:14px 18px;line-height:1.8}.answer-box strong{color:var(--c-brand-ink);margin-right:6px}.meta-row{color:var(--c-muted);font-size:var(--fs-sm);flex-wrap:wrap;align-items:center;gap:6px 16px;margin-top:14px;display:flex}.meta-row>span,.meta-row>a{align-items:center;gap:6px;display:inline-flex}.with-aside{grid-template-columns:minmax(0,1fr);gap:32px;display:grid}@media (width>=1024px){.with-aside{grid-template-columns:minmax(0,1fr) 300px;gap:48px}.aside-sticky{top:calc(var(--header-h) + 20px);max-height:calc(100vh - var(--header-h) - 40px);position:sticky;overflow:auto}}.stack>*+*{margin-top:16px}.stack-lg>*+*{margin-top:32px}.block-title{font-size:var(--fs-lg);margin-bottom:14px}.kv{border:1px solid var(--c-line);border-radius:var(--radius);background:#fff;grid-template-columns:1fr;display:grid;overflow:hidden}.kv>div{border-bottom:1px solid var(--c-line-soft);font-size:var(--fs-sm);grid-template-columns:7.5em 1fr;gap:12px;padding:10px 14px;display:grid}.kv>div:last-child{border-bottom:0}.kv dt{color:var(--c-muted)}.kv dd{color:var(--c-ink-2);margin:0}@media (width>=768px){.kv.kv-2{grid-template-columns:1fr 1fr}.kv.kv-2>div:nth-last-child(2):nth-child(odd){border-bottom:0}.kv.kv-2>div:nth-child(odd){border-right:1px solid var(--c-line-soft)}}.dot{background:currentColor;border-radius:50%;width:8px;height:8px;display:inline-block}.sample-note{border-radius:var(--radius-sm);background:var(--c-warn-soft);color:var(--c-warn);font-size:var(--fs-xs);align-items:flex-start;gap:8px;padding:10px 14px;line-height:1.6;display:flex}.bg-dots{background-image:radial-gradient(circle at 1px 1px,#dde3ec 1px,#0000 0);background-size:20px 20px}.mono{font-family:var(--font-mono)}.live-dot{background:#0ca30c;border-radius:50%;width:8px;height:8px;display:inline-block;box-shadow:0 0 0 3px #e3f5e3}@media (prefers-reduced-motion:no-preference){.live-dot{animation:2.4s ease-in-out infinite pulse}}@keyframes pulse{50%{box-shadow:0 0 0 6px #0ca30c14}}.stat-strip{font-family:var(--font-mono);color:var(--c-muted);flex-wrap:wrap;gap:6px 18px;font-size:12.5px;display:flex}.stat-strip b{color:var(--c-ink);font-weight:700}@media print{.site-header,.site-footer,.no-print{display:none!important}}.site-header[data-astro-cid-isef26zo]{z-index:50;-webkit-backdrop-filter:saturate(1.6)blur(10px);border-bottom:1px solid var(--c-line);background:#ffffffeb;position:sticky;top:0}.bar[data-astro-cid-isef26zo]{height:var(--header-h);align-items:center;gap:16px;display:flex}.logo[data-astro-cid-isef26zo]{color:var(--c-ink);letter-spacing:.02em;flex-shrink:0;align-items:center;gap:10px;font-size:1.125rem;font-weight:800;display:inline-flex}.logo[data-astro-cid-isef26zo]:hover{color:var(--c-ink)}.desktop-nav[data-astro-cid-isef26zo]{flex:1;min-width:0;display:none}.desktop-nav[data-astro-cid-isef26zo]>ul[data-astro-cid-isef26zo]{align-items:center;gap:2px;display:flex}.nav-item[data-astro-cid-isef26zo]{position:relative}.nav-link[data-astro-cid-isef26zo]{color:var(--c-ink-2);white-space:nowrap;border-radius:8px;align-items:center;gap:2px;padding:8px 10px;font-size:.9688rem;font-weight:550;display:inline-flex}.nav-link[data-astro-cid-isef26zo]:hover,.nav-item[data-astro-cid-isef26zo]:focus-within .nav-link[data-astro-cid-isef26zo]{background:var(--c-bg-soft);color:var(--c-ink)}.nav-link[data-astro-cid-isef26zo].active{color:var(--c-brand)}.nav-link[data-astro-cid-isef26zo] .caret{color:var(--c-faint)}.dropdown[data-astro-cid-isef26zo]{visibility:hidden;opacity:0;padding-top:8px;transition:opacity .12s,transform .12s,visibility .12s;position:absolute;top:100%;left:0;transform:translateY(4px)}.nav-item[data-astro-cid-isef26zo]:hover .dropdown[data-astro-cid-isef26zo],.nav-item[data-astro-cid-isef26zo]:focus-within .dropdown[data-astro-cid-isef26zo]{visibility:visible;opacity:1;transform:none}.dropdown[data-astro-cid-isef26zo] ul[data-astro-cid-isef26zo]{border:1px solid var(--c-line);border-radius:var(--radius);min-width:220px;box-shadow:var(--shadow-lg);background:#fff;padding:8px}.dropdown[data-astro-cid-isef26zo] a[data-astro-cid-isef26zo]{color:var(--c-ink-2);font-size:var(--fs-sm);border-radius:8px;flex-direction:column;padding:8px 12px;line-height:1.4;display:flex}.dropdown[data-astro-cid-isef26zo] a[data-astro-cid-isef26zo]:hover{background:var(--c-brand-soft);color:var(--c-brand-ink)}.dropdown[data-astro-cid-isef26zo] small[data-astro-cid-isef26zo]{color:var(--c-muted);font-size:var(--fs-xs);margin-top:2px}.actions[data-astro-cid-isef26zo]{align-items:center;gap:6px;margin-left:auto;display:flex}.header-search[data-astro-cid-isef26zo]{border:1px solid var(--c-line);background:var(--c-bg-soft);height:40px;color:var(--c-muted);border-radius:10px;align-items:center;gap:8px;padding:0 12px;display:none}.header-search[data-astro-cid-isef26zo]:focus-within{border-color:var(--c-brand-line);background:#fff}.header-search[data-astro-cid-isef26zo] input[data-astro-cid-isef26zo]{width:190px;font-size:var(--fs-sm);color:var(--c-ink);background:0 0;border:0;outline:0}.icon-btn[data-astro-cid-isef26zo]{width:44px;height:44px;color:var(--c-ink-2);background:0 0;border:0;border-radius:10px;place-items:center;display:inline-grid}.icon-btn[data-astro-cid-isef26zo]:hover{background:var(--c-bg-soft);color:var(--c-ink)}.menu-btn[data-astro-cid-isef26zo] .i-close,.menu-btn[data-astro-cid-isef26zo][aria-expanded=true] .i-open{display:none}.menu-btn[data-astro-cid-isef26zo][aria-expanded=true] .i-close{display:block}.mobile-nav[data-astro-cid-isef26zo]{inset:var(--header-h) 0 0 0;overscroll-behavior:contain;border-top:1px solid var(--c-line);background:#fff;padding-block:16px 40px;position:fixed;overflow-y:auto}.mobile-search[data-astro-cid-isef26zo]{gap:8px;margin-bottom:12px;display:flex}.mobile-search[data-astro-cid-isef26zo] input[data-astro-cid-isef26zo]{border:1px solid var(--c-line);background:var(--c-bg-soft);border-radius:10px;flex:1;min-width:0;height:44px;padding:0 14px;font-size:1rem}.mobile-search[data-astro-cid-isef26zo] .btn[data-astro-cid-isef26zo]{min-height:44px}.m-list[data-astro-cid-isef26zo]>li[data-astro-cid-isef26zo]{border-bottom:1px solid var(--c-line-soft)}.m-top[data-astro-cid-isef26zo]{min-height:52px;color:var(--c-ink);cursor:pointer;justify-content:space-between;align-items:center;font-size:1.0625rem;font-weight:600;list-style:none;display:flex}summary[data-astro-cid-isef26zo].m-top::-webkit-details-marker{display:none}details[data-astro-cid-isef26zo][open]>summary[data-astro-cid-isef26zo] .caret{transform:rotate(180deg)}.m-sub[data-astro-cid-isef26zo]{grid-template-columns:1fr 1fr;gap:4px 12px;padding-bottom:14px;display:grid}.m-sub[data-astro-cid-isef26zo] a[data-astro-cid-isef26zo]{background:var(--c-bg-soft);min-height:40px;color:var(--c-ink-2);font-size:var(--fs-sm);border-radius:8px;align-items:center;padding:0 10px;display:flex}@media (width>=768px){.header-search[data-astro-cid-isef26zo]{display:flex}.search-link[data-astro-cid-isef26zo]{display:none}}@media (width>=1180px){.desktop-nav[data-astro-cid-isef26zo]{display:block}.menu-btn[data-astro-cid-isef26zo]{display:none}.header-search[data-astro-cid-isef26zo] input[data-astro-cid-isef26zo]{width:150px}}@media (width>=1320px){.header-search[data-astro-cid-isef26zo] input[data-astro-cid-isef26zo]{width:200px}}html.nav-open{overflow:hidden}.site-footer[data-astro-cid-oenwriqq]{color:#cbd5e1;font-size:var(--fs-sm);background:#0f172a;margin-top:64px;padding-block:48px 28px}a[data-astro-cid-oenwriqq]{color:#cbd5e1}a[data-astro-cid-oenwriqq]:hover{color:#fff}.top[data-astro-cid-oenwriqq]{border-bottom:1px solid #ffffff14;grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:32px;display:grid}.f-logo[data-astro-cid-oenwriqq]{color:#fff;font-size:1.25rem;font-weight:800}.about[data-astro-cid-oenwriqq] p[data-astro-cid-oenwriqq]{color:#94a3b8;max-width:560px;margin-top:12px;line-height:1.8}.f-actions[data-astro-cid-oenwriqq]{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.f-actions[data-astro-cid-oenwriqq] .btn[data-astro-cid-oenwriqq]{color:#e2e8f0;background:0 0;border-color:#ffffff2e}.f-actions[data-astro-cid-oenwriqq] .btn[data-astro-cid-oenwriqq]:hover{color:#fff;border-color:#fff}.f-title[data-astro-cid-oenwriqq]{color:#fff;margin-bottom:12px;font-weight:700}.latest[data-astro-cid-oenwriqq] li[data-astro-cid-oenwriqq]+li[data-astro-cid-oenwriqq],.cols[data-astro-cid-oenwriqq] li[data-astro-cid-oenwriqq]+li[data-astro-cid-oenwriqq]{margin-top:8px}.latest[data-astro-cid-oenwriqq] a[data-astro-cid-oenwriqq]{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.cols[data-astro-cid-oenwriqq]{border-bottom:1px solid #ffffff14;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 16px;padding-block:32px;display:grid}.bottom[data-astro-cid-oenwriqq]{gap:12px;padding-top:20px;display:grid}.legal[data-astro-cid-oenwriqq]{flex-wrap:wrap;gap:8px 18px;display:flex}.copy[data-astro-cid-oenwriqq]{color:#64748b;font-size:var(--fs-xs);line-height:1.7}@media (width>=768px){.top[data-astro-cid-oenwriqq]{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr)}.cols[data-astro-cid-oenwriqq]{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width>=1024px){.cols[data-astro-cid-oenwriqq]{grid-template-columns:repeat(5,minmax(0,1fr))}}